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Bacterial Identification and Classification

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Questions and Answers

What is the primary basis for classifying bacteria into different groups?

Their habitat
Their basic shapes (correct)
Their metabolic processes
Their modes of reproduction

What is the characteristic of Gram stain in bacteria identification?

It differentiates between bacteria based on the color they absorb (correct)
It identifies bacteria based on their spore formation
It distinguishes between bacteria based on their shape
It determines whether bacteria can absorb India ink

What is the purpose of selective media in bacterial identification?

To allow for the growth of only a specific type of bacteria (correct)
To observe the physical characteristics of bacteria
To distinguish between different species of bacteria
To inhibit the growth of all bacteria

What is the purpose of India ink stain in bacterial identification?

To visualize the presence of capsules (A) Signup and view all the answers

What is the characteristic of Blood agar in bacterial identification?

It is a differential medium that allows for the growth of multiple bacterial species (C) Signup and view all the answers

What is the shape of Escherichia coli O157:H7 bacteria?

Rod shaped (A) Signup and view all the answers

What is the incubation period of Listeriosis?

2 days - 3 weeks (C) Signup and view all the answers

What is the shape of Staphylococcus aureus bacteria?

Round, Spherical, Cocci (A) Signup and view all the answers

What is the contaminant of Salmonellosis?

Milk, meat, fruits, vegetables, water (A) Signup and view all the answers

What is the cause of Botulism?

Intoxication (spores - neurotoxin) (B) Signup and view all the answers

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